ENH: Refactor survey line IO into separate functions
CLN: Use the new IO functions when loading survey
CLN: Minor cleanup
TST: Add tests for I/O functions
Restore universal except and log a warning
CLN: Clean up imports
CLN: Move the survey I/O functions to a more clearly named module, survey_io
CLN: Remove unused import
CLN: Quotes around error message
Merge pull request #18 from twdb/refactor/io

Refactor the I/O for survey lines into separate functions